gfx_open_framebuffer

gfx_t *gfx_open_framebuffer(const char *path);

use

gfx_open_framebuffer open a new gfx_t context for the specified framebuffer.
For portable behaviour applications should pass NULL as path (this will use the value from the FB environement variable).

return value

gfx_open_framebuffer return a pointer to a new gfx_t context or a NULL pointer and set errno in case of error (eg : no framebuffer found, …)

error

• ENOENT The specified framebuffer don’t exist.
• EINVAL path is not a framebuffer.